Model KFT Temperature Indicating Controllers indicate and control a process variable by converting its temperature change into mechanical displacement of a bellows through change in expansion of liquid-fill by temperature or change in gas-fill pres-sure by temperature. Indicating transmitters and indicating transmitting controllers also are available as well as indicating controllers. The controllers are available either in the local type to set the set-point value with the knob on the instrument or in the cascade type(remote type) to set the set-point value with a pneumatic set-point signal. **A wide variety of measuring elements and control mechanisms are available to meet various applications. **A pneumatic circuit board and a heat-resistant weatherproof sturdy case are used , thereby greatly improving the durability and reliability. **The pneumatic circuit board system allows to readily add or eliminate control mechanisms and units, thereby enhancing the system modification and expansion flexibility. **Interchangeable parts are used to the maximum practicable extent, thereby reducing the number of parts to be kept in stock. **A bellows type pressure receiving element, which provides a larger torque and a higher resistance against vibration, is employed. **A Compensation mechanisms for ambient temperature change is incorporated.